GW0742 shows activity aganist hPPARα, hPPARγ and hPPARδ with EC50 of 1.1 μM, 2 μM and 1 nM, respectively, in cell based transactivation assay. [1] GW0742 (0.2 μM and 1 μM) significant increases in reporter activity of PPARβ/δ in N/TERT-1 keratinocytes. GW0742 (1 μM) results in significant inhibition in the average number of N/TERT-1 keratinocytes. GW0742 (1 μM) results in an increase in the number of cells in the G1 phase and a decrease in the number of cells in the S phase. GW0742 (1 μM) causes a significant increase in the mRNA encoding ADRP, a known PPARβ/δ target gene, in N/TERT-1 keratinocytes as well as mouse primary keratinocytes. GW0742 (1 μM) results in significantly reduced phosphorylation of retinoblastoma (Rb) and a significantly lower level of p42/44 ERK in N/TERT-1 cells. GW0742 (1 μM) leads to an increase in the mRNA encoding a number of known markers of terminal differentiation including TG-I, SPR1A, K10 and involucrin. [2] GW0742 at 100 μM produces a significant reduction in low-KCl-induced neuronal cell death in cerebellar granule neurons. GW0742 at 100 μM induces a pronounced increase in cell death as measured by LDH release after 48 hr of incubation. GW0742 at 100 μM produces a pronounced increase in c-Jun expression at 6 hours in cerebellar granule neuron cultures. GW0742 at 100 μM increases PPARα-mediated transactivation dependent on the presence of 1.5% BSA in MCF-7 cells. [3]

GW0742-treatment (0.3 mg/Kg, 10 % DMSO, i.p.) has therapeutic effects on pulmonary damage, decreasing many inflammatory and apoptotic parameters detected by measurement of 1) cytokine production; 2) leukocyte accumulation, indirectly measured as decrease of myeloperoxidase (MPO) activity; 3) IkBα degradation and NF-kB nuclear translocation; 4) ERK phosphorylation; 5) stress oxidative by NO formation due to iNOS expression; 6) nitrotyrosine and PAR localization; 7) the degree of apoptosis, evaluated by Bax and Bcl-2 balance, FAS ligand expression and TUNEL staining. Taken together, GW0742 reduces the lung injury and inflammation due to the intratracheal BLEO--instillation in mice.